Historical clue formulations

• You might walk on this at night — 2025-04-06
• Walk quietly — 2024-03-05
• Move stealthily — 2021-12-30
• Creep — 2020-04-25
• Creep, perhaps — 2019-06-15
• Walk very, very quietly — 2016-08-15
• Go quietly — 2014-04-06
• Proceed quietly — 2013-06-25
• Walk very, very quietly — 2012-12-24
• Sneak, in a way — 2010-04-15
• Move with stealth — 2004-03-03
• Move with stealth — 2002-09-14
• Move quietly — 2002-08-07
• Walk quietly — 2001-11-27
• Walk softly — 2001-10-09
• Move stealthily — 1998-04-19
• Walk quietly — 1997-09-04
• Walk stealthily — 1995-03-10